Added issue template and pull request template (#126)

Author: drakeet

.github/CONTRIBUTING.md

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+# Contributing
+
+If you would like to contribute code to MultiType you can do so through GitHub by
+forking the repository and sending a pull request.
+
+When submitting code, please make every effort to follow existing conventions
+and style in order to keep the code as readable as possible. Please also make
+sure your code compiles by running `./gradlew clean build` and Checkstyle with 
+`/checkstyle.xml`.

.github/ISSUE_TEMPLATE.md

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+What kind of issue is this?
+
+ - [ ] Question. This issue tracker is not the place for questions. If you want to ask how to do
+       something, or to understand why something isn't working the way you expect it to, use Stack
+       Overflow. https://stackoverflow.com/questions/tagged/MultiType
+
+ - [ ] Bug report. If you’ve found a bug, spend the time to write a failing test. Please provide 
+       your device name, system version, and describe the reproduction path.
+
+ - [ ] Feature Request. Start by telling us what problem you’re trying to solve. Often a solution
+       already exists! Don’t send pull requests to implement new features without first getting our
+       support. Sometimes we leave features out on purpose to keep the project small.
+
+###### Info:
+
+ - MultiType version: 
+ - Device OS version: 
+ - Device Name: 
+
+###### Description: 
+
+###### Reproduction Steps: 
+
+###### My thoughts: 
+
+###### What did I do: